I have been working on the IRAM project, doing benchmark hacking. My free software projects have received a lot less of my time lately, but I'm learning a lot more. After learning about IRAM, going home to my Intel and AMD boxes makes me kind of sad.
I have become very interested in automatic vectorization in C compilers. Someday, it would be nice to see a free software vectorizing C compiler.
The Instructional Software CD was released, without Java.